JPH0543568Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Field of application of the invention] The invention relates to an electronic camera, and in detail,
The present invention also relates to an electronic camera that provides an indication when the recording capacity of a recording medium such as a video recording medium that magnetically records audio or the like is insufficient.

[Background of the idea] Generally, images taken with an electronic camera are
It is recorded on a track of a video floppy made of, for example, a magnetic disk via an image pickup device such as a CCD.

In addition, there are two recording methods for video floppies: field mode, in which one field of image signals is recorded on one track, and one screen is composed of one field of this one track during playback, and the other is in which one screen is composed of two fields. configure and set one field to the first
There is a frame mode in which the fields of the first track and the other track are recorded on a second track, and each field of the first track and second track constitutes one screen during playback.

Furthermore, a mode (hereinafter referred to as mode 2) has been proposed in recent years in which one track is cleared before recording one screen's worth of image signals, and in addition to the image, shooting information such as audio and date can be recorded. For example, if you select this mode 2 and shoot in field mode, the empty track ~ 1
Empty tracks are provided in the order of field recording track to empty track, or in the order of empty track to first field recording track to second field recording track to empty track in frame mode shooting, before recording image signals for one screen. It's becoming like that.

By the way, if the number of recordable tracks remaining on the video floppy is, for example, 2 tracks, you can shoot in field mode with a maximum of 2 tracks even if mode 2 is selected, but when shooting in frame mode, If mode 2 is selected, three tracks are required, so recording becomes impossible.

Therefore, in the past, a display device such as a light emitting diode or a liquid crystal display was installed in the viewfinder of the camera or on the camera body, and the light emitting diode was lit to indicate whether the recording mode at the time of shooting was field mode, frame mode, or 2 mode. , the fact that there were no empty tracks was displayed on the LCD display segment when recording ended.

However, this display method simply displays the recording mode at the time of shooting and the end of recording, so even if there are actually recordable tracks remaining, the photographer does not know, for example, the frame mode When shooting with a camera, there was a problem in that it was difficult to know whether or not it was possible to shoot due to the amount of remaining tracks.

[Purpose of the invention] The present invention was made to solve the above-mentioned conventional problems. When the number of tracks is insufficient in the selected mode, the remaining tracks are recorded by other tracks. It is now possible to display in an easy-to-understand manner to the photographer whether or not it is possible to use the mode, and it is also possible to display other causes of inability to record on the video floppy recording medium, making it easier to handle the recording medium. The purpose is to provide cameras.

[Summary of the invention] The gist of the invention is to provide an electronic camera capable of recording in a plurality of recording modes with different numbers of tracks used for the recording medium, to determine whether or not the recording medium is loaded. a first display means for detecting and displaying that the recording medium is not loaded when the recording medium is not loaded; and a state of an accidental erasure prevention piece for setting whether or not recording is possible on the recording medium. a second display means for detecting the number of tracks remaining on the recording medium and for displaying that recording is not possible when the state of the accidental erasure prevention piece is set to a recording prohibited state; a third display means for displaying, when the number of remaining tracks detected by the remaining track number detecting section is smaller than the required number of tracks in the selected recording mode, that recording in the selected recording mode is impossible; An electronic camera is characterized by the following.

[Embodiments of the invention] The present invention will be described in detail below based on embodiments shown in the drawings.

FIG. 1 is a schematic diagram of an embodiment of an electronic camera according to the present invention.

In the figure, 1 is a camera release switch, 21 is a video floppy detection switch that detects whether a video floppy is loaded, 3 is a control circuit that drives and controls the display 4, and 5 is the control circuit 3, display 4, etc. 10 and 11 are power supply control lines, and 20 is a display control line. When the release switch 1 is turned on, power from the power supply control circuit 5 is supplied to the control circuit 3, and the release switch is 1, the power supply to the control circuit 3 is cut off after a predetermined time has elapsed, and since the display device 4 consumes only a small amount of current during standby, power is constantly supplied to the display device 4. That's what I do. The display 4 is of a liquid crystal display type, and includes a pictorial display segment section 6 that pictorially displays the external shape of the video floppy that is loaded into the electronic camera.
, a numerical display segment section 7 consisting of seven segments and displaying numerical values such as the number of shots taken, and a pictorial display segment that corresponds to the tab for preventing accidental erasure of the video floppy provided in the pictorial display segment section 6. 34, a message display segment block 30, a field mode display segment 31, a frame mode display segment 32, and a mode display segment 33 for mode 2 display.

In addition to the release switch 1 and the video floppy detection switch 21, the control circuit 3 also includes:
Accidental erasure prevention tab detection switch 2 that detects the presence or absence of an accidental erasure prevention tab provided on the video floppy
2. A track END switch 23 that detects the end of a video floppy recording track, a mode 1 changeover switch 24 that switches the recording mode for recording images on the video floppy as a field or a frame, and the recording order on the video floppy track. A mode 2 changeover switch 25 is connected to change the mode.

Next, the operation of the control circuit 3 will be explained based on the flowchart shown in FIG.

First, it is checked whether the video floppy loaded in the camera body is normal (S50).
Here, the determination as to whether or not the video floppy is normal is made by, for example, applying a rotation servo to the motor that drives the video floppy, checking the amount of rotation jitter, the time required for rotation servo lock, and checking the steady state of the motor. If the voltage between the motor terminals or motor current during rotation is significantly different from that when a normal video floppy is driven, it is determined that the video floppy is defective. Note that if a video floppy is loaded, the video floppy detection switch 2
1 is turned on, the picture display segment section 6 lights up, and if it is an accidental erasure prevention video floppy, the accidental erasure prevention tab display segment section 34 is displayed blinking.

Here, if the video floppy is defective, the message display segment block 30 displays a message indicating that it is defective, for example "Err" (S59), and the picture display segment section 6 blinks (S60).
The process advances to (S65) and the sequence ends.

If the video floppy is normal, the mode 1 changeover switch 24 is checked to determine whether the recording mode is field mode or frame mode (S51).

Then, if it is the field mode, the FIELD mode display segment 31 is lit (S61), and if the frame mode is the frame mode, the FRAME mode display segment 32 is lit (S52), and the process proceeds to the respective steps (S53).

In (S53), the mode 2 changeover switch 25 is checked, and if mode 2 is selected, the mode display segment 33 is lit up (S62), and if mode 2 is not selected, the mode display segment 33 is displayed.
Turn off the light (S54) and proceed to each step (S55).

In (S55), the number of remaining tracks on the video floppy is searched, and the process proceeds to (S56).

(S56) compares the number of remaining tracks with the number of tracks required by the recording mode (field mode or frame mode) in the selected mode (mode 1 or mode 2), and determines whether recording can be performed using the remaining tracks. to judge.

That is, when I mode 1 is selected, (a): The number of tracks required for recording in field mode is 1, so if the number of remaining tracks is 1 or more, there are remaining tracks, (b): Frame mode Then, the number of tracks required for recording is 2, so if the number of remaining tracks is 2 or more, there are remaining tracks.If mode 2 is selected, (a): In field mode, the number of tracks required for recording is 2, so if the number of remaining tracks is 2 or more, there are remaining tracks. (b): In frame mode, the number of tracks required for recording is 3, so if the number of remaining tracks is 3 or more, there are remaining tracks. , and proceeds to (S63), and if it is determined that there are no remaining tracks, proceeds to (S57).

In (S63), since there is a remaining track, the message display segment block 30 is turned off,
Next, in (S64) a photographing sequence is executed.

If there are no remaining tracks, ``End'' is displayed in the message display segment block 30 in (S57), and the display section corresponding to the selected mode and recording mode is blinked in (S58). For example, in mode 1, if it is field mode, the FIELD mode display segment 31 and if it is frame mode, the FRAME mode display segment 32 is displayed blinking, and in mode 2, if it is field mode, the FIELD mode display segment 31 and the mode display are displayed blinking. Segment 33, FRAME mode display segment 32 if in frame mode
and the mode display segment 33 are displayed blinking.

Then, in (S65), the display sequence regarding the presence or absence of remaining tracks ends.

Therefore, the photographer knows from the display states of the message display segment block 30, FIELD mode display segment 31, FRAME mode display segment 32, and mode display segment 33 that recording is not possible in the selected mode, and starts recording. You can easily find other possible modes, and you can use the video floppy tracks without wasting them.

[Effects of the invention] As explained above, according to the invention, it is possible to tell the photographer whether or not recording is possible on the remaining track depending on the recording mode by, for example, flashing the display of the selected recording mode. Because it is possible to inform
By selecting another recording mode, it is possible to easily check whether recording is possible on the remaining tracks, and the effect that the recording medium can be used effectively can be obtained.

In addition to simply indicating that recording is not possible, we also check the cause of the inability to record, whether it is because the recording medium is not loaded or whether the recording medium's accidental erasure prevention piece is set to a write-inhibited state. This allows the operator to clearly recognize whether there are any remaining recording tracks on the recording medium.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of an embodiment of an electronic camera according to the present invention, and FIG. 2 is a flowchart showing its operation. 1...Release switch, 3...Control circuit, 4
... Display unit, 5 ... Power supply control circuit, 6 ... Pictorial display segment section, 7 ... Numerical display segment section, 2
1...Video floppy detection switch, 30...
Message display segment block, 31...
FIELD mode display segment, 32...
FRAME mode display segment, 33...Mode display segment.

Claims (1)

[Claims for Utility Model Registration] An electronic camera capable of recording on a recording medium in a plurality of recording modes with different numbers of tracks used, which detects whether or not the recording medium is loaded, and when the recording medium is not loaded. detects the state of a first display means for displaying that the recording medium is not loaded; and an accidental erasure prevention piece for setting whether or not recording is possible on the recording medium; and detects the state of the accidental erasure prevention piece. a second display means for displaying that recording is not possible when the recording is prohibited; a remaining track number detection section for detecting the number of remaining tracks on the recording medium; and a remaining track number detection section for detecting the number of remaining tracks on the recording medium. If the number of remaining tracks detected in the selected recording mode is smaller than the required number of tracks in the selected recording mode, a third display means displays that recording in the selected recording mode is impossible. .